SS1 Second Term Auto Mechanic Past Questions And Answers
Here are 20 SS1 Second Term Auto Mechanic Questions with options and answers:
Question: What is the primary function of the camshaft in an engine?
A. Control steering
B. Mix air and fuel
C. Open and close engine valves
D. Generate electricity
Answer: C. Open and close engine valves
Question: Which part of the suspension system connects the wheels to the chassis and allows for vertical movement?
A. Shock absorber
B. Control arm
C. Stabilizer bar
D. Coil spring
Answer: B. Control arm
Question: What does OBD stand for in the context of vehicle diagnostics?
A. On-Board Diagnostics
B. Overhead Brake Device
C. Oil-Burning Diesel
D. Outer Body Design
Answer: A. On-Board Diagnostics
Question: Which component in the braking system converts hydraulic pressure into mechanical force to activate the brakes?
A. Brake caliper
B. Brake master cylinder
C. Brake rotor
D. Brake booster
Answer: B. Brake master cylinder
Question: What is the purpose of the alternator in a vehicle’s electrical system?
A. Mix air and fuel
B. Charge the battery
C. Control exhaust emissions
D. Transfer power to the wheels
Answer: B. Charge the battery
Question: Which type of suspension system provides a smoother ride by allowing each wheel to move independently?
A. MacPherson strut
B. Double wishbone
C. Solid axle
D. Torsion beam
Answer: B. Double wishbone
Question: What is the purpose of the serpentine belt in an engine?
A. Transfer power to the wheels
B. Rotate the crankshaft
C. Drive various engine components
D. Control steering
Answer: C. Drive various engine components
Question: In a manual transmission, what is the purpose of the clutch?
A. Control exhaust emissions
B. Transfer power to the wheels
C. Engage and disengage the engine from the gearbox
D. Mix air and fuel
Answer: C. Engage and disengage the engine from the gearbox
Question: What is the function of the throttle body in an engine?
A. Mix air and fuel
B. Control exhaust emissions
C. Regulate tire pressure
D. Control the amount of air entering the engine
Answer: D. Control the amount of air entering the engine
Question: Which type of transmission uses a torque converter instead of a traditional clutch?
A. Manual transmission
B. Semi-Automatic transmission
C. Automatic transmission
D. Continuously Variable Transmission (CVT)
Answer: C. Automatic transmission
Question: What is the purpose of the powertrain in a vehicle?
A. Generate electricity
B. Transfer power to the wheels
C. Control steering
D. Mix air and fuel
Answer: B. Transfer power to the wheels
Question: Which type of fuel injection system uses individual injectors for each cylinder?
A. Sequential Fuel Injection (SFI)
B. Throttle Body Injection (TBI)
C. Multi-Point Fuel Injection (MPFI)
D. Direct Injection
Answer: C. Multi-Point Fuel Injection (MPFI)
Question: What is the purpose of the distributor in an older ignition system?
A. Control exhaust emissions
B. Mix air and fuel
C. Distribute high voltage to spark plugs
D. Transfer power to the wheels
Answer: C. Distribute high voltage to spark plugs
Question: In a fuel-injected engine, what sensor measures the amount of oxygen in the exhaust gases?
A. Mass Air Flow (MAF) sensor
B. Oxygen (O2) sensor
C. Throttle Position Sensor (TPS)
D. Coolant Temperature Sensor (CTS)
Answer: B. Oxygen (O2) sensor
Question: Which type of brake system uses a rotating drum and brake shoes for stopping the vehicle?
A. Disc brakes
B. Hydraulic brakes
C. Drum brakes
D. Anti-Lock Braking System (ABS)
Answer: C. Drum brakes
Question: What is the purpose of the EGR (Exhaust Gas Recirculation) system in an engine?
A. Increase horsepower
B. Reduce emissions
C. Transfer power to the wheels
D. Regulate tire pressure
Answer: B. Reduce emissions
Question: Which component in the ignition system stores electrical energy and releases it to the spark plug?
A. Ignition coil
B. Distributor cap
C. Spark plug wire
D. Camshaft position sensor
Answer: A. Ignition coil
Question: What is the purpose of the differential lock in a four-wheel-drive (4WD) vehicle?
A. Transfer power between wheels
B. Improve fuel efficiency
C. Control steering
D. Regulate tire pressure
Answer: A. Transfer power between wheels
Question: Which type of engine has a circular motion of the pistons, commonly found in some motorcycles?
A. Inline-4 engine
B. V6 engine
C. Wankel engine
D. V8 engine
Answer: C. Wankel engine
Question: What is the purpose of the PCV (Positive Crankcase Ventilation) system in an engine?
A. Regulate tire pressure
B. Control exhaust emissions
C. Transfer power to the wheels
D. Mix air and fuel
Answer: B. Control exhaust emissions.
